Quick and simple, your dream colour is only one application away thanks to Crazy Color Semi-Permanent Cream. Crazy Color Semi-Permanent Cream is so successful due to having none of the restrictions of dyes expected to last for a significant period of time. As such, when applied to pre-lightened hair, its incredibly effective without complications. Before application, we recommend first attempting a strand test to ensure you're happy with the colour. Then follow it up with a sensitivity test on a small area of skin to see if you have an allergy.After Shampooing, towel dry hair and apply Crazy Color Semi-Permanent Cream evenly over hair (wear gloves). Leave for 15-30 minutes, then rinse thoroughly.